Quarterly report pursuant to Section 13 or 15(d)

Long-term Bonds Payable and Restricted Cash (Details) - Schedule of long-term bonds payable

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Long-term Bonds Payable and Restricted Cash (Details) - Schedule of long-term bonds payable - USD ($)
Jun. 30, 2021
Dec. 31, 2020
Long-term Bonds Payable and Restricted Cash (Details) - Schedule of long-term bonds payable [Line Items]    
Aggregate principal amount $ 10,200,000 $ 10,200,000
Unamortized loan fee (886,247) (981,906)
Net 9,313,753 9,218,094
Credit Enhanced Zero Coupon Convertible Bonds [Member]    
Long-term Bonds Payable and Restricted Cash (Details) - Schedule of long-term bonds payable [Line Items]    
Aggregate principal amount 10,000,000 10,000,000
Coupon Bonds [Member]    
Long-term Bonds Payable and Restricted Cash (Details) - Schedule of long-term bonds payable [Line Items]    
Aggregate principal amount $ 200,000 $ 200,000